sc/source/ui/undo/areasave.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sfx2/linkmgr.hxx>
  21
  22 #include "areasave.hxx"
  23 #include "arealink.hxx"
  24 #include "document.hxx"
  25
  26 // -----------------------------------------------------------------------
  27
  28 ScAreaLinkSaver::ScAreaLinkSaver( const ScAreaLink& rSource ) :
  29     aFileName   ( rSource.GetFile() ),
  30     aFilterName ( rSource.GetFilter() ),
  31     aOptions    ( rSource.GetOptions() ),
  32     aSourceArea ( rSource.GetSource() ),
  33     aDestArea   ( rSource.GetDestArea() ),
  34     nRefresh    ( rSource.GetRefreshDelay() )       // seconds
  35 {
  36 }
  37
  38 ScAreaLinkSaver::ScAreaLinkSaver( const ScAreaLinkSaver& rCopy ) :
  39     aFileName   ( rCopy.aFileName ),
  40     aFilterName ( rCopy.aFilterName ),
  41     aOptions    ( rCopy.aOptions ),
  42     aSourceArea ( rCopy.aSourceArea ),
  43     aDestArea   ( rCopy.aDestArea ),
  44     nRefresh    ( rCopy.nRefresh )
  45 {
  46 }
  47
  48 ScAreaLinkSaver::~ScAreaLinkSaver() {}
  49
  50 bool ScAreaLinkSaver::IsEqualSource( const ScAreaLink& rCompare ) const
  51 {
  52     return ( aFileName.equals(rCompare.GetFile()) &&
  53              aFilterName.equals(rCompare.GetFilter()) &&
  54              aOptions.equals(rCompare.GetOptions()) &&
  55              aSourceArea.equals(rCompare.GetSource()) &&
  56              nRefresh == rCompare.GetRefreshDelay() );
  57 }
  58
  59 bool ScAreaLinkSaver::IsEqual( const ScAreaLink& rCompare ) const
  60 {
  61     return ( IsEqualSource( rCompare ) &&
  62              aDestArea == rCompare.GetDestArea() );
  63 }
  64
  65 void ScAreaLinkSaver::WriteToLink( ScAreaLink& rLink ) const
  66 {
  67     rLink.SetDestArea( aDestArea );
  68 }
  69
  70 void ScAreaLinkSaver::InsertNewLink( ScDocument* pDoc ) const
  71 {
  72     // (see ScUndoRemoveAreaLink::Undo)
  73
  74     sfx2::LinkManager* pLinkManager = pDoc->GetLinkManager();
  75     SfxObjectShell* pObjSh = pDoc->GetDocumentShell();
  76
  77     if ( pLinkManager && pObjSh )
  78     {
  79         ScAreaLink* pLink = new ScAreaLink( pObjSh, aFileName, aFilterName, aOptions,
  80                                             aSourceArea, aDestArea.aStart, nRefresh );
  81         pLink->SetInCreate( sal_True );
  82         pLink->SetDestArea( aDestArea );
  83         OUString aTmp1(aFilterName), aTmp2(aSourceArea);
  84         pLinkManager->InsertFileLink( *pLink, OBJECT_CLIENT_FILE, aFileName, &aTmp1, &aTmp2 );
  85         pLink->Update();
  86         pLink->SetInCreate( false );
  87     }
  88 }
  89
  90 ScAreaLinkSaveCollection::ScAreaLinkSaveCollection() {}
  91
  92 ScAreaLinkSaveCollection::ScAreaLinkSaveCollection( const ScAreaLinkSaveCollection& r ) :
  93     maData(r.maData) {}
  94
  95 ScAreaLinkSaveCollection::~ScAreaLinkSaveCollection() {}
  96
  97 bool ScAreaLinkSaveCollection::IsEqual( const ScDocument* pDoc ) const
  98 {
  99     // IsEqual can be checked in sequence.
 100     // Neither ref-update nor removing links will change the order.
 101
 102     sfx2::LinkManager* pLinkManager = const_cast<ScDocument*>(pDoc)->GetLinkManager();
 103     if (pLinkManager)
 104     {
 105         size_t nPos = 0;
 106         const ::sfx2::SvBaseLinks& rLinks = pLinkManager->GetLinks();
 107         sal_uInt16 nLinkCount = rLinks.size();
 108         for (sal_uInt16 i=0; i<nLinkCount; i++)
 109         {
 110             ::sfx2::SvBaseLink* pBase = *rLinks[i];
 111             if (pBase->ISA(ScAreaLink))
 112             {
 113                 if ( nPos >= size() || !(*this)[nPos]->IsEqual( *(ScAreaLink*)pBase ) )
 114                     return false;
 115
 116                 ++nPos;
 117             }
 118         }
 119         if ( nPos < size() )
 120             return false;           // fewer links in the document than in the save collection
 121     }
 122
 123     return true;
 124 }
 125
 126 static ScAreaLink* lcl_FindLink( const ::sfx2::SvBaseLinks& rLinks, const ScAreaLinkSaver& rSaver )
 127 {
 128     sal_uInt16 nLinkCount = rLinks.size();
 129     for (sal_uInt16 i=0; i<nLinkCount; i++)
 130     {
 131         ::sfx2::SvBaseLink* pBase = *rLinks[i];
 132         if ( pBase->ISA(ScAreaLink) &&
 133              rSaver.IsEqualSource( *static_cast<ScAreaLink*>(pBase) ) )
 134         {
 135             return static_cast<ScAreaLink*>(pBase);     // found
 136         }
 137     }
 138     return NULL;    // not found
 139 }
 140
 141 void ScAreaLinkSaveCollection::Restore( ScDocument* pDoc ) const
 142 {
 143     // The save collection may contain additional entries that are not in the document.
 144     // They must be inserted again.
 145     // Entries from the save collection must be searched via source data, as the order
 146     // of links changes if deleted entries are re-added to the link manager (always at the end).
 147
 148     sfx2::LinkManager* pLinkManager = pDoc->GetLinkManager();
 149     if (pLinkManager)
 150     {
 151         const ::sfx2::SvBaseLinks& rLinks = pLinkManager->GetLinks();
 152         size_t nSaveCount = size();
 153         for (size_t nPos=0; nPos<nSaveCount; ++nPos)
 154         {
 155             const ScAreaLinkSaver* pSaver = (*this)[nPos];
 156             ScAreaLink* pLink = lcl_FindLink( rLinks, *pSaver );
 157             if ( pLink )
 158                 pSaver->WriteToLink( *pLink );          // restore output position
 159             else
 160                 pSaver->InsertNewLink( pDoc );          // re-insert deleted link
 161         }
 162     }
 163 }
 164
 165 ScAreaLinkSaveCollection* ScAreaLinkSaveCollection::CreateFromDoc( const ScDocument* pDoc )
 166 {
 167     ScAreaLinkSaveCollection* pColl = NULL;
 168
 169     sfx2::LinkManager* pLinkManager = const_cast<ScDocument*>(pDoc)->GetLinkManager();
 170     if (pLinkManager)
 171     {
 172         const ::sfx2::SvBaseLinks& rLinks = pLinkManager->GetLinks();
 173         sal_uInt16 nLinkCount = rLinks.size();
 174         for (sal_uInt16 i=0; i<nLinkCount; i++)
 175         {
 176             ::sfx2::SvBaseLink* pBase = *rLinks[i];
 177             if (pBase->ISA(ScAreaLink))
 178             {
 179                 if (!pColl)
 180                     pColl = new ScAreaLinkSaveCollection;
 181
 182                 ScAreaLinkSaver* pSaver = new ScAreaLinkSaver( *(ScAreaLink*)pBase );
 183                 pColl->push_back(pSaver);
 184             }
 185         }
 186     }
 187
 188     return pColl;
 189 }
 190
 191 const ScAreaLinkSaver* ScAreaLinkSaveCollection::operator [](size_t nIndex) const
 192 {
 193     return &maData[nIndex];
 194 }
 195
 196 size_t ScAreaLinkSaveCollection::size() const
 197 {
 198     return maData.size();
 199 }
 200
 201 void ScAreaLinkSaveCollection::push_back(ScAreaLinkSaver* p)
 202 {
 203     maData.push_back(p);
 204 }
 205
 206 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */